DSH 333 Separation of Internal Circuits

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DSH 333 * p6 n! n- w; S1 E+ H

Separation of Internal Circuits

6.6.1 ) |& F* k* E! p7 }( ~

61010-1(ed.1);am1;am2

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' m  `: P$ u6 x( y( [& y" oStandard:
IEC 61010-1:1990 +A1:1992 + A2
:1995
Sub clause:
6.6.1
Sheet n. 333
Page 1(1)
Subject:
Separation of Internal circuits
) W, h9 j& m& b: S& `Key words:
- Isolation system
; z. [( y  H/ k4 R4 D" J5 v1 I1 s- Materials Declaration
Decision n. 23 taken at
5 W/ r6 A$ D+ b7 m37th meeting/2000
' E/ U4 o* \( l& DQuestion:
What should be the criteria for accepting a manufacturer’s declaration for
( R; v# ^8 }' ^! x1 u9 t: Lisolation systems and materials?
4 |- ?$ T8 `+ \( Y. H" aThis question is from CTL.
Decision:
It was agreed that although manufacturer 's declaration may well be taken into consideration,
however testing must be performed to ensure that requirements of IEC61010-1 is met.
Explanatory Notes:
4 N; X# E8 I( |! k" D) P1 N- gIn IEC61010-1, there is no requirement to simulate the ageing process of critical components
; X6 a- F1 o$ ^) h! z* Ksuch as the mains / isolating transformers.
It should be noted that after each single fault condition test, where necessary, the required
high voltage test must also be applied to ensure that at least basic insulation exists.
Note that under compliance criteria there is no reference to 'Declaration by manufacturer'.
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